Big Island International Marathon
Race Day Weather
Warm and humid, light rain expected
Runners will face temperatures rising from 74°F to 78°F with high humidity at 90%. A light rain is expected throughout, adding to the muggy conditions, while winds from the E are at 8 mph with gusts up to 18 mph. It's advisable to start conservatively and hydrate frequently to manage the heat and moisture.
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Race Info
This run goes along the old coast of the Big Island. The marathon is 2 out and backs starting at the Hilo Hawaiian and finishing back at the same hotel. Packet pickup and the Expo are the day before the race at the Hilo Hawaiian Hotel. At the checkout you can purchase Event Insurance for live events Source
FAQ
When is the 2026 Big Island International Marathon?
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Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 70°/79° | Light | 69° | |
2024 | | 67°/78° | Light | 65° | |
2023 | | 66°/85° | - | 61° | |
2020 |  | 71°/79° | Light | 67° | |
2019 |  | 60°/78° | - | 56° | |
2018 | | 69°/81° | - | 66° | |
2017 | | 66°/80° | - | 61° | |
2016 | | 67°/78° | Light | 64° |